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Finding the Fourth Proportional to 608.23, 912.21 and 300.30

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Solution

The fourth proportional to 608.23, 912.21 and 300.30 is: 450.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.23 : 912.21 = 300.30 : x
  2. Step 2: Convert to fraction form
    608.23/912.21 = 300.30/x
  3. Step 3: Cross multiply
    608.23x = 912.21 × 300.30
  4. Step 4: Simplify right side
    608.23x = 273,936.66
  5. Step 5: Solve for x
    x = 273,936.66/608.23
  6. Step 6: Final answer
    x = 450.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.